The development of methodologies for evaluating the integrity of corroded pipelines under combined loading. Part 2: Engineering model and PC program development
- Giat Industries S.A., Bourges (France). Branche Euro Impact
- Southwest Research Inst., San Antonio, TX (United States)
- MFK Consultants, San Antonio, TX (United States)
A theoretically-sound assessment procedure which provides a reliable and precise measure of residual strength given the observed damage and applied loads has been developed for degraded gas/oil transmission pipelines under combined loads. The safe and practicable employment of the new technique relies on the ability to correctly define the magnitude of axial bending and compressive stresses, which act in concert with the pressure-related stresses, for a pipe having a discrete metal loss region. As part of a three-phase study designed to provide a readily-usable and reliable procedure superior to common used evaluation guidelines, an engineering model based on elastic shell theory has been developed and incorporated in a computer program suitable for use on a personal computer. The new methodology allows for accurate definition of combined applied stresses and geometry of the degraded region. This paper comprises Part 2 of a two-part paper discussing development of the improved methodologies, and provides detail on the evolution and application of the engineering model embodied in the SAFE (Shell Analysis Failure Envelope) computer program.
- OSTI ID:
- 287798
- Report Number(s):
- CONF-960154-; ISBN 0-9648731-8-4; TRN: IM9639%%418
- Resource Relation:
- Conference: Energy Week `96: American Society of Mechanical Engineers and American Petroleum Institute energy week conference and exhibition, Houston, TX (United States), 21 Jan - 2 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Energy week `96: Conference papers. Book 2: Pipelines, terminals and storage; PB: 239 p.
- Country of Publication:
- United States
- Language:
- English
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